647946208

素因数分解:

$2^5\times 7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:302

約数の個数: 192

約数和(自身を含む): 1693440000

約数和(自身を除く): 1045493792

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32, 38, 49, 52, 56, 76, 91, 98, 104, 112, 133, 152, 182, 196, 208, 224, 239, 247, 266, 304, 343, 364, 392, 416, 478, 494, 532, 608, 637, 686, 728, 784, 931, 956, 988, 1064, 1274, 1372, 1456, 1568, 1673, 1729, 1862, 1912, 1976, 2128, 2548, 2744, 2912, 3107, 3346, 3458, 3724, 3824, 3952, 4256, 4459, 4541, 5096, 5488, 6214, 6517, 6692, 6916, 7448, 7648, 7904, 8918, 9082, 10192, 10976, 11711, 12103, 12428, 13034, 13384, 13832, 14896, 17836, 18164, 20384, 21749, 23422, 24206, 24856, 26068, 26768, 27664, 29792, 31787, 35672, 36328, 43498, 46844, 48412, 49712, 52136, 53536, 55328, 59033, 63574, 71344, 72656, 81977, 84721, 86996, 93688, 96824, 99424, 104272, 118066, 127148, 142688, 145312, 152243, 163954, 169442, 173992, 187376, 193648, 208544, 222509, 236132, 254296, 304486, 327908, 338884, 347984, 374752, 387296, 413231, 445018, 472264, 508592, 608972, 655816, 677768, 695968, 826462, 890036, 944528, 1017184, 1065701, 1217944, 1311632, 1355536, 1557563, 1652924, 1780072, 1889056, 2131402, 2435888, 2623264, 2711072, 2892617, 3115126, 3305848, 3560144, 4262804, 4871776, 5785234, 6230252, 6611696, 7120288, 8525608, 11570468, 12460504, 13223392, 17051216, 20248319, 23140936, 24921008, 34102432, 40496638, 46281872, 49842016, 80993276, 92563744, 161986552, 323973104, 647946208]

約数ペア:

[(1, 647946208), (2, 323973104), (4, 161986552), (7, 92563744), (8, 80993276), (13, 49842016), (14, 46281872), (16, 40496638), (19, 34102432), (26, 24921008), (28, 23140936), (32, 20248319), (38, 17051216), (49, 13223392), (52, 12460504), (56, 11570468), (76, 8525608), (91, 7120288), (98, 6611696), (104, 6230252), (112, 5785234), (133, 4871776), (152, 4262804), (182, 3560144), (196, 3305848), (208, 3115126), (224, 2892617), (239, 2711072), (247, 2623264), (266, 2435888), (304, 2131402), (343, 1889056), (364, 1780072), (392, 1652924), (416, 1557563), (478, 1355536), (494, 1311632), (532, 1217944), (608, 1065701), (637, 1017184), (686, 944528), (728, 890036), (784, 826462), (931, 695968), (956, 677768), (988, 655816), (1064, 608972), (1274, 508592), (1372, 472264), (1456, 445018), (1568, 413231), (1673, 387296), (1729, 374752), (1862, 347984), (1912, 338884), (1976, 327908), (2128, 304486), (2548, 254296), (2744, 236132), (2912, 222509), (3107, 208544), (3346, 193648), (3458, 187376), (3724, 173992), (3824, 169442), (3952, 163954), (4256, 152243), (4459, 145312), (4541, 142688), (5096, 127148), (5488, 118066), (6214, 104272), (6517, 99424), (6692, 96824), (6916, 93688), (7448, 86996), (7648, 84721), (7904, 81977), (8918, 72656), (9082, 71344), (10192, 63574), (10976, 59033), (11711, 55328), (12103, 53536), (12428, 52136), (13034, 49712), (13384, 48412), (13832, 46844), (14896, 43498), (17836, 36328), (18164, 35672), (20384, 31787), (21749, 29792), (23422, 27664), (24206, 26768), (24856, 26068)]